The π-rotation low-density parity check codes. - Rich Echard; Shih-Chun Chang (GLOBECOM, 2001)

Irregular π-rotation LDPC codes. - Rich Echard; Shih-Chun Chang (GLOBECOM, 2002)

The extended irregular π-rotation LDPC codes. - Rich Echard; Shih-Chun Chang (IEEE Commun. Lett., 2003)

Design considerations leading to the development of good π-rotation LDPC codes. - Rich Echard; Shih-Chun Chang (IEEE Commun. Lett., 2005)

Geometric Interpretation and Design Strategy for π-Rotation LDPC Codes. - Rich Echard; Shih-Chun Chang (IEEE Commun. Lett., 2007)

Good high-rate pi-rotation LDPC codes based on novel puncturing techniques. - Rich Echard; Shih-Chun Chang (ISITA, 2010)